HAS-BLED
HAS-BLED - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
Open the HAS-BLED → Runs in your browser. No signup, no tracking.
What this is
Compute the HAS-BLED bleeding-risk score for a patient on (or being considered for) oral anticoagulation for atrial fibrillation. Inputs are the eight original Pisters 2010 variables - hypertension, abnormal renal or liver function, stroke history, prior bleeding, labile INR, age >65, and concurrent drugs or alcohol - and the score returns a 0-9 total with the published one-year major-bleed risk band.
When to use it
Pair this with CHA2DS2-VASc when deciding whether to start, continue, or modify anticoagulation for non-valvular AF, or when documenting shared decision-making in the chart. A high HAS-BLED does not by itself contraindicate anticoagulation; it flags modifiable risk factors (uncontrolled BP, NSAID use, labile INR) the team can address before changing therapy.
References
Pisters R, et al. A novel user-friendly score (HAS-BLED). Chest. 2010;138(5):1093-1100. Read the source ↗
Worked example: HAS-BLED total 2 (moderate bleeding risk).
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.